Suitable for Class A and B fires: It is effective on fires involving ordinary combustible materials like wood and paper (Class A), and flammable liquids such as petrol or diesel (Class B).
How it works: The foam acts by cooling the fire and creating a seal over the liquid's surface, which prevents flammable vapors from reaching the air and re-igniting.
Usage instructions: The label provides simple instructions: pull out the safety pin, aim at the base of the fire, and press the lever fully down.
Ratings: The extinguisher has a fire rating of 15A 183B.
Safety warning: A warning on the label indicates it is not suitable for use on live electrical equipment.